Astrodon

70 products

    The best performing astronomy filters on the market. Step up to Astrodon Filters

    A note on back-orders. There is often a long waiting list for Astrodon Filters and the best thing to do is to place your order to get on the waiting list. Back-orders are usually filled within 6-8 weeks. We have increased production and we continue to work to reduce wait times. Thank you for your patience.

    Astrodon is known for designing the best performing, most durable filters for astrophotography and research.

    For astrophotography, Astrodon LRGB filters simplify imaging by allowing you to take one exposure time for each color, only one corresponding dark exposure time and nearly equal color combine weights in post-processing. The resulting color balance is superb, which is why so many of the top imagers now use Astrodon LRGB filters. These designs eliminate halos around bright stars that detract from the beauty of the galaxy or nebula.

    Astrodon Narrowband filters set the highest, consistent performance level, and are spectrally narrower than most other filters, leading to the best contrast and faintest structures in your nebula. Astrodon has a performance guarantee of >90%T at the emission line on every box.

    UBVRI and Sloan PHOTOMETRIC filters are 100%-coated using no colored glass for long-term durability that is so critical for consistent, long-term research. They have the highest throughputs available for better signals and fainter objects and are becoming widely accepted in professional observatories in sizes up to 150mm. Some of these larger filters are used on the famous Palomar 200" telescope, at the MacDonald Observatory, Las Cumbres Observatory of Global Telescopes, AAVSO and universities and research organizations worldwide.

    All Astrodon astrophotography filters are manufactured in the U.S. with superb quality control using 100% hard-oxide sputtered coatings. Astrodon filters cost a little more because of the benefits that their high performance and great durability provides. Filters are a critical part of telescope systems. They are the "spark plugs" that make the "engine" go. Step up to Astrodon and see the difference.

    Please explore our product pages to learn more about how Astrodon products can help you.
    70 products
    Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets (6795794776217)
    Astrodon LRGB Gen2 E-Series Tru-Balance Filters_2 (6795794776217)
    Astrodon LRGB Gen2 E-Series Tru-Balance Filter Sets
    from $595.98
    Sale
    Astrodon 5nm Narrowband Filters - H-alpha 5nm (6795794874521)
    Astrodon 5nm Narrowband Filters - H-alpha 5nm
    from $250.00 Regular price $418.00 Save $168
    Astrodon Narrowband Astrophotography Filters - OIII 3nm (6795795267737)
    5 nm Narrowband Filters - RedCon (6795795267737)
    Astrodon Narrowband Astrophotography Filters - OIII 3nm
    from $682.00
    Sale
    Astrodon 5 nm Narrowband Filters - SII 5nm (6795794972825)
    5 nm Narrowband Filters - RedCon (6795794972825)
    Astrodon 5nm SII Narrowband filter
    from $250.00 Regular price $418.00 Save $168
    Astrodon Photometrics Johnson-Cousins Filters (6795795660953)
    Astrodon Photometrics UVBRI Filters_3 (6795795660953)
    Astrodon Photometrics Johnson-Cousins Filters
    from $261.80
    Astrodon 5 nm Narrowband Filters - OIII 5nm (6795795038361)
    5 nm Narrowband Filters - RedCon (6795795038361)
    Astrodon 5 nm Narrowband Filters - OIII 5nm
    from $413.82
    Astrodon 3 nm Narrowband Filters - SII filter (6795795333273)
    Astrodon 3 nm Narrowband Filters - SII filter
    from $682.00
    Astrodon 3 nm Narrowband H-alpha Filter (6795795202201)
    5 nm Narrowband Filters - RedCon (6795795202201)
    Astrodon 3 nm Narrowband H-alpha Filter
    from $682.00
    MOAG Eye (6795795792025)
    Astrodon ExoPlanet Light Curve Filters
    from $220.00
    Product Shot L2P 2 (6795837636761)
    Product Shot L2P (6795837636761)
    Astrodon L2P Light Pollution Luminance Filter
    $185.90
    Astrodon Clear Filters (6795795136665)
    Astrodon Clear Filters
    from $209.00
    Dark50 (6795919392921)
    Free with any website purchase: Astrodon Dark Frame Blackout Disk, 31mm
    $0.00
    Astrodon LRGB Gen2 I-Series Tru-Balance Filters, INDIVIDUAL FILTERS (6795795988633)
    Astrodon LRGB Gen2 E-Series Tru-Balance Filters_comp (6795795988633)
    2nd Quality Astrodon LRGB Gen2 E-Series Tru-Balance Filters, INDIVIDUAL FILTERS
    from $111.10
    Astrodon Photometrics Sloan Filters (6795795464345)
    Astrodon Photometrics Sloan Filters (6795795464345)
    Astrodon Photometrics Sloan Filters
    from $261.80
    Astrodon LRGB Gen2 I-Series Tru-Balance Filters, INDIVIDUAL FILTERS (6795794841753)
    Authentic Astrodon Packaging (6795794841753)
    Astrodon LRGB Gen2 I-Series Tru-Balance Filter Sets
    from $595.98
    52mm cell (6795794743449)
    52mm cell top down (6795794743449)
    Astrodon 52mm Screw-in Filter Cell
    $24.20
    Astrodon LRGB Gen2 I-Series Tru-Balance Filters, INDIVIDUAL FILTERS (6795795988633)
    Astrodon LRGB Gen2 E-Series Tru-Balance Filters_comp (6795795988633)
    Astrodon LRGB Gen2 E-Series Tru-Balance Filters, INDIVIDUAL FILTERS
    from $199.87
    Dark50 (6795919425689)
    Free with any website purchase: Astrodon Dark Frame Blackout Disk, 36mm
    $0.00
    2-inch (6795772264601)
    Astrodon 2" One Shot Color Luminance Filter (UV / IR Cut)
    $151.80
    Dark50 (6795919294617)
    Free with any website purchase: Astrodon Dark Frame Blackout Disk, 50mm
    $0.00
    Astrodon 3 nm Narrowband H-alpha Filter (6795795202201)
    5 nm Narrowband Filters - RedCon (6795795202201)
    2nd Quality Astrodon 3 nm Narrowband H-alpha Filter
    from $341.00
    Astrodon MonsterMOAG Off-Axis Guider with 1 Port
    $599.50
    Astrodon 5nm Narrowband Filters - H-alpha 5nm (6795794874521)
    2nd Quality Astrodon 5nm H-Alpha Narrowband filter
    from $229.90
    Sold Out
    Z705_50R (6795795398809)
    Z705_50S (6795795398809)
    Astrodon NIR Filters (Close-Out)
    from $141.35
    Astrodon MegaMOAG 4" to 3" Off-Axis Guider
    $1,083.50
    Astrodon 5 nm Narrowband Filters - SII 5nm (6795794972825)
    5 nm Narrowband Filters - RedCon (6795794972825)
    2nd Quality Astrodon 5nm SII Narrowband filter
    from $229.90
    Sold Out
    1.25 inch (6795772231833)
    Astrodon 1.25" One Shot Color Luminance Filter (UV / IR Cut)
    $91.30
    Astrodon Photometrics Johnson-Cousins Filters (6795795660953)
    Astrodon Photometrics UVBRI Filters_3 (6795795660953)
    2nd Quality Astrodon Photometrics Johnson-Cousins Filters
    from $130.90
    Astrodon Narrowband Astrophotography Filters - OIII 3nm (6795795267737)
    5 nm Narrowband Filters - RedCon (6795795267737)
    2nd Quality Astrodon 3 nm Narrowband OIII Filter
    from $341.00
    Sold Out
    Astrodon scope-side Male 2.7"-24 adapter, 0.1" thick (6795900911769)
    Astrodon scope-side Male 2.7"-24 adapter, 0.1" thick
    $115.50
    Astrodon 3 nm Narrowband Filters - SII filter (6795795333273)
    2nd Quality Astrodon 3 nm Narrowband Filters - SII filter
    from $341.00
    Astrodon Monster Filter Drawer Slider for 50mm round unmounted diameter filters (6795898028185)
    Astrodon Filter Drawer Slider for 50mm round unmounted diameter filters
    $60.50
    Customer Drawing MMOAG 3-M (6795846090905)
    Astrodon camera side adapter 3" x 24 TPI male x 0.4" protrusion (Model 3-M)
    $127.60
    5 nm Narrowband Filters - RedCon (6795795103897)
    Astrodon Filter Packaging! (6795795103897)
    5 nm Narrowband Filters - RedCon
    from $413.82
    Sold Out
    MOAG Eye (6795795792025)
    2nd Quality Astrodon ExoPlanet Light Curve Filters
    from $111.65
    Sold Out
    NII3 28 (6795795234969)
    2nd Quality Astrodon Narrowband Filters - 3nm NII Filter
    from $341.00
    Monster MOAG Prism Spacer 0.125" Thick (6795846910105)
    P1120193 (6795846910105)
    Monster MOAG Prism Spacer 0.125" Thick
    $24.20
    Astrodon Extra Port with Helical Focuser, prism, spacers, holder for MMOAG (6795845828761)
    Astrodon Extra Port with Helical Focuser, prism, spacers, holder for MMOAG (6795845828761)
    Astrodon Extra Port with Helical Focuser, prism, spacers, holder for MMOAG
    $302.50
    Astrodon Photometrics Sloan Filters (6795795464345)
    Astrodon Photometrics Sloan Filters (6795795464345)
    2nd Quality Astrodon Photometrics Sloan Filters
    from $130.90